Spiral Steel Pipe
Short Description:
- OD size: 219.1 mm – 2540mm (8″-100″)
- Wall thickness: 3.2mm – 25.4mm
- Length: 6 – 22 m
- Standard: API 5L, API 5CT, ASTM A252, ASTM 53, EN10217, EN10219, BS, JIS, IS
- Certificate: EN10217, EN10219, API 5L PSL1/ PSL2, API 5CT
- Usage: Low-pressure liquid etc.
What is the Spiral Welded Pipe
Spiral welded pipe(SSAW pipe, also called HSAW pipe). The pipe is formed by spiral submerged arc welding technology. Spiral welded pipes are formed using narrower plates or hot rolled coils, which lowers their production costs significantly. The welding line shape like a helix. The spiral welding process permits the production of large-diameter pipes suitable for transporting large volumes of oil and gas. Some SSAW pipes were historically limited to low-pressure applications.
Size chart of Spiral Welded Pipe
| Outer Diameter (mm) |
Wall Thickness (mm) | |||||||||||||||||||
| 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | |
| 219.1 | . | . | . | . | ||||||||||||||||
| 273 | . | . | . | . | . | |||||||||||||||
| 323.9 | . | . | . | . | . | . | . | |||||||||||||
| 325 | . | . | . | . | . | . | . | |||||||||||||
| 355.6 | . | . | . | . | . | . | . | |||||||||||||
| 377 | . | . | . | . | . | . | . | . | ||||||||||||
| 406.4 | . | . | . | . | . | . | . | |||||||||||||
| 426 | . | . | . | . | . | . | . | |||||||||||||
| 457 | . | . | . | . | . | . | . | |||||||||||||
| 478 | . | . | . | . | . | . | . | |||||||||||||
| 508 | . | . | . | . | . | . | . | . | ||||||||||||
| 529 | . | . | . | . | . | . | . | . | ||||||||||||
| 630 | . | . | . | . | . | . | . | . | . | |||||||||||
| 711 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| 720 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| 813 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| 820 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| 920 | . | . | . | . | . | . | . | . | . | . | ||||||||||
| 1020 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| 1220 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| 1420 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| 1620 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
| 1820 | . | . | . | . | . | . | . | . | . | . | ||||||||||
| 2020 | . | . | . | . | . | . | . | . | . | |||||||||||
| 2220 | . | . | . | . | . | . | . | . | ||||||||||||
| 2500 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| 2540 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||||
| 3500 | . | . | . | . | . | . | . | . | . | . | . | |||||||||
The manufacturing process of spiral welded pipe
Standard of spiral welded pipe
| Steel Pipe for Fluid Service | GB/T 14291 | Welded pipe for mine fluid service |
| GB/T 3091 | Welded pipe for low-pressure fluid service | |
| SY/T 5037 | Spirally submerged arc welded steel pipe for pipelines for low-pressure fluid service | |
| ASTM A53 | Black and hot-dipped galvanized welded and seamless steel pipe | |
| BS EN10217-2 | Welded steel tubes for pressure purposes – delivery technical conditions – part2: Electric welded non- alloy and alloy steel tubes with specified elevated temperature properties | |
| BS EN10217-5 | Welded steel tubes for pressure purposes – delivery technical conditions – part5: submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties | |
| Steel Pipe for Ordinary Structure | GB/T 13793 | Longitudinally electric resistance welded steel pipe |
| SY/T 5040 | Spirally submerged arc welded steel pipe piles | |
| ASTM A252 | Welded and seamless steel pipe piles | |
| BS EN10219-1 | Cold-formed welded structural hollow sections of non-alloy and fine grain steels – part1: Technical delivery conditions | |
| BS EN10219-2 | Cold-formed welded structural hollow sections of non-alloy and fine grain steels – part2: tolerances dimensions and sectional properties | |
| Line Pipe | GB/T 9711.1 | Steel pipe for the pipeline transportation system of petroleum and natural gas industries(Class A steel pipe) |
| GB/T 9711.2 | Steel pipe for the pipeline transportation system of petroleum and natural gas industries(Class B steel pipe) | |
| API 5L PSL1/2 | Line pipe | |
| Casing | API 5CT/ ISO 11960 PSL1 | Steel pipe for use as casing or tubing for wells of petroleum and natural gas industries |
Application of spiral welded pipe
- Water supply engineering
- Petrochemical industry
- Chemical industry
- Electric power industry
- Agricultural irrigation
- Urban construction.
- Water supply and drainage.
- Gas transport
- Structure construction
Material Grade
| Material | ASTM A240 Standard | 201, 304 304L 304H 309S 309H 310S 310H 316 316H 316L 316Ti 317 317L 321 321H 347 347H 409 410 410S 430 904L |
| ASTM A480 Standard | 302, s30215, s30452, s30615, 308, 309, 309Cb, 310, 310Cb, S32615,S33228, S38100, 304H, 309H, 310H, 316H, 309HCb, 310HCb, 321H,347H, 348H, S31060, N08811, N08020, N08367, N08810, N08904,N08926, S31277, S20161, S30600, S30601, S31254, S31266,S32050, S32654, S32053, S31727, S33228, S34565, S35315,S31200, S31803, S32001, S32550, S31260, S32003, S32101,S32205, S32304, S32506, S32520, S32750, S32760, S32900, S32906, S32950, S32974 | |
| JIS 4304-2005 Standard | SUS301L,SUS301J1,SUS302,SUS304, SUS304L, SUS316/316L, SUS309S, SUS310S, 3SUS21L, SUS347, SUS410L, SUS430, SUS630 | |
| JIS G4305 Standard | SUS301, SUS301L, SUS301J1, SUS302B, SUS304, SUS304Cu,SUS304L, SUS304N1, SUS304N2, SUS304LN, SUS304J1, SUSJ2,SUS305, SUS309S, SUS310S, SUS312L, SUS315J1, SUS315J2,SUS316, SUS316L, SUS316N, SUS316LN, SUS316Ti, SUS316J1,SUS316J1L,SUS317, SUS317L, SUS317LN, SUS317J1, SUS317J2,SUS836L, SUS890L, SUS321, SUS347, SUSXM7, SUSXM15J1, SUS329J1, SUS329J3L, SUS329J4L, SUS405, SUS410L, SUS429, SUS430, SUS430LX, SUS430J1L, SUS434, SUS436L, SUS436J1L,SUS444, SUS445J1, SUS445J2, SUS447J1, SUSXM27, SUS403,SUS410, SUS410S, SUS420J1, SUS420J2, SUS440A |
Product Specification
| Finish | Thickness | Characteristics | Applications |
| No. 1 | 3.0mm~50.0mm | Finished by hot-rolling, annealing and pickling, characterized by white pickled surface | Chemical industry equipment, Industrial tanks |
| No. 2B | 0.3mm~6.0mm | Finished by heat treatment, pickling after cold rolling, followed by skin pass line to be more brighter and smooth surface | General Application Medical Instruments, Tableware |
| No. BA (Bright Annealed) | 0.5mm~2.0mm | Bright heat treatment after cold rolling | Kitchen utensil, kitchen ware, architectural purpose |
| No. 4 | 0.4mm~3.0mm | Polishing with No. 150 to No.180 mesh abrasives. The most popular finishes | Milk & Food processing facilities, Hospital Equipment, Bath-tub |
| No. 8 | 0.5mm~2.0mm | A mirror-like reflective surface by polishing with finer abrasives over 800 mesh | Reflector, Mirror, Interior-Exterior decoration forbuilding |
| HL(Hair Line) | 0.4mm~3.0mm | Finished by continuous linear polishing | Architectural purposes, escalators, kitchen ware vehicles |
Chemical Composition
|
Grade |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Ti |
N |
Cu |
Nb |
|
201 |
≤0.15 |
≤1.0 |
5.50-7.50 |
≤0.05 |
≤0.03 |
16.00-18.00 |
3.50-5.50 |
- |
- |
0.05-0.25 |
- |
- |
|
202 |
≤0.15 |
≤1.0 |
7.50-10.00 |
≤0.05 |
≤0.03 |
17.00-19.00 |
4.00-6.00 |
- |
- |
0.05-0.25 |
- |
- |
|
301 |
≤0.15 |
≤1.0 |
≤2.0 |
≤0.045 |
≤0.03 |
16.00-18.00 |
6.00-8.00 |
- |
- |
≤0.1 |
- |
- |
|
302 |
≤0.15 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
17.00-19.00 |
8.00-10.00 |
- |
- |
≤0.1 |
- |
- |
|
303 |
≤0.15 |
≤1.0 |
≤2.0 |
≤0.2 |
≥0.15 |
17.00-19.00 |
8.00-10.00 |
≤0.6 |
- |
≤0.1 |
- |
- |
|
304 |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
17.00-19.00 |
8.00-10.00 |
- |
- |
- |
- |
- |
|
304L |
≤0.03 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
18.00-20.00 |
8.00-10.00 |
- |
- |
- |
- |
- |
|
304H |
0.04-0.1 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
18.00-20.00 |
8.00-10.00 |
- |
- |
- |
- |
- |
|
304N |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
18.00-20.00 |
8.00-10.00 |
- |
- |
0.10-0.16 |
- |
- |
|
304J1 |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
18.00-20.00 |
6.00-9.00 |
- |
- |
- |
1.00-3.00 |
- |
|
305 |
≤0.12 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
17.00-19.00 |
10.50-13.00 |
- |
- |
- |
- |
- |
|
309S |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
22.00-24.00 |
12.00-15.00 |
- |
- |
- |
- |
- |
|
310S |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
24.00-26.00 |
19.00-22.00 |
- |
- |
- |
- |
- |
|
316 |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
10.00-14.00 |
2.00-3.00 |
- |
- |
- |
- |
|
316L |
≤0.03 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
12.00-15.00 |
2.00-3.00 |
- |
- |
- |
- |
|
316H |
≤0.1 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
10.00-14.00 |
2.00-3.00 |
- |
- |
- |
- |
|
316N |
≤0.03 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
10.00-14.00 |
2.00-3.00 |
- |
0.10-0.16 |
- |
- |
|
316Ti |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
16.00-19.00 |
11.00-14.00 |
2.00-3.00 |
≥5C |
- |
- |
- |
|
317L |
≤0.03 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
18.00-20.00 |
11.00-15.00 |
3.00-4.00 |
- |
- |
- |
- |
|
321 |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
17.00-19.00 |
9.00-12.00 |
- |
5C-0.7 |
- |
- |
- |
|
347 |
≤0.08 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
17.00-19.00 |
9.00-12.00 |
- |
- |
- |
- |
10C-1.10 |
|
347H |
≤0.1 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
17.00-19.00 |
9.00-12.00 |
- |
- |
- |
- |
8C-1.10 |
|
2205 |
≤0.03 |
≤1.0 |
≤2.0 |
≤0.035 |
≤0.03 |
21.00-24.00 |
4.50-6.50 |
2.50-3.50 |
- |
0.08-0.20 |
- |
- |
|
2507 |
≤0.03 |
≤0.8 |
≤1.2 |
≤0.035 |
≤0.02 |
24.00-26.00 |
6.00-8.00 |
3.00-5.00 |
- |
0.24-0.32 |
- |
- |
|
904L |
≤0.02 |
≤1.0 |
≤2.0 |
≤0.045 |
≤0.03 |
19.00-23.00 |
23.00-28.00 |
4.00-5.00 |
- |
- |
1.00-2.00 |
- |
|
C276 |
≤0.02 |
≤0.05 |
≤1.0 |
- |
- |
14.00-16.50 |
Other |
- |
- |
- |
- |
- |
|
Monel400 |
≤0.3 |
≤0.5 |
≤2.0 |
- |
≤0.024 |
- |
≥63 |
- |
- |
- |
28-34 |
- |
|
409L |
≤0.03 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
17.00-19.00 |
- |
- |
- |
- |
- |
- |
|
410 |
≤0.15 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
11.50-13.50 |
- |
- |
- |
- |
- |
- |
|
410L |
≤0.03 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
11.50-13.50 |
- |
- |
- |
- |
- |
- |
|
420J1 |
0.16-0.25 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
12.00-14.00 |
- |
- |
- |
- |
- |
- |
|
420J2 |
0.26-0.40 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
12.00-14.00 |
- |
- |
- |
- |
- |
- |
|
430 |
≤0.12 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
- |
- |
- |
- |
- |
- |
|
436L |
≤0.025 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
16.00-19.00 |
- |
- |
- |
- |
- |
- |
|
439 |
≤0.03 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
- |
- |
- |
- |
- |
- |
|
440A |
0.60-0.75 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
- |
≤0.75 |
- |
- |
- |
- |
|
440B |
0.75-0.95 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
- |
≤0.75 |
- |
- |
- |
- |
|
440C |
0.95-1.2 |
≤1.0 |
≤1.0 |
≤0.035 |
≤0.03 |
16.00-18.00 |
- |
≤0.75 |
- |
- |
- |
- |
|
441 |
≤0.03 |
0.2-0.8 |
≤0.7 |
≤0.03 |
≤0.015 |
17.50-18.50 |
- |
≤0.5 |
0.1-0.5 |
≤0.025 |
- |
0.3+3C-0.9 |
We wrap the stainless steel products with anti-rust paper and steel rings to prevent damage.
Identification labels are tagged accordingto standard specification or customer’s instructions.
Special packing is available as per customer’s requirement.
Stainless Steel Coil Package
Stainless Steel Sheet / Stainless Steel Plate Package
Stainless Steel Strip Package
Shipment Package
Our company is based in Wuxi, gathering city of industrial stainless steel in China.
We specialized in stainless coils, sheets and plate, stainless steel pipe and fittings, stainless steel tubes, and also aluminum products and copper products.
Our products have been highly praised by our clients from Europe, America, the Middle East, African and Southeast Asia. We will offer competitive products and comprehensive service to customers.
Stainless Steel Grade: 201, 202, 202cu, 204, 204cu, 303, 304, 304L, 308, 308L, 309, 309s, 310, 310s, 316, 316L, 321, 347, 410, 416, 420, 430, 430F, 440, 440c,
Alloy Grade :Monel, Inconel, Hastolley, Duplex, Super Duplex, Titanium, Tantalum, High Speed Steel, Mild Steel, Aluminium, Alloy Steel, Carbon Steel, Special Nickel Alloys
In form of : Round Bars, Square Bars, Hexagonal Bars, Flat Bars, Angles, Channels, Profiles, Wires, Wire Rods, Sheets, Plates, Seamless Pipes, ERW Pipes, Flanges, Fittings,etc.
Q1: What is stainless?
A: Stainless means no marks on the steel surface, or a kind of steel that is not damaged by air or water and that does not change color, spotless, resistant to staining, rusting, the corrosive effect of chemicals.
Q2: Does stainless mean no rusting?
A: No, stainless means not easy to get stained or rusty, it has speical ability to reisist staining, rusting and corrosion.
Q3: Do you supply stainless steel sheets?
A: Yes, we supply different types of stainless steel sheets, with thickness ranges from 0.3-3.0mm. and in different finishes.
Q4: Do you accept cut to length service?
A: Of course, customer’s satisfaction is our top priority.
Q5: If i have a small order, do you accept small order?
A: Not a problem, your concern is our concern, small quantities are accepted.
Q6: How can you guarantee your product quality?
A: First, from the very start, we have already implemented a spirit to their mind, that is quality is life, our professional workers and staffs will follow up every step till the goods packed well and shipped out.
Q7: Will you pack the products?
A: Professional people do professional packing, we have different types of packing optional to customers, economic one or better one.
Q8: What do you need to know from customer before accurate quotation?
A: For an accurate quotation, we need to know grade, thickness, size, surface finish, color and quantity of your order, and also the destination of the goods. Customized product information will be needed more, like drawing, layout and plan. Then we will offer competitive quotation with the above information.
Q9: What kind of payment term you accpet?
A: We accept T/T, West union, L/C.
Q10: If this is a small order, will you delivery the goods to our agent?
A: Yes, we are born to solve problems of our customers, we will get the goods safely to your agent’s warehouse and send you the pictures.
Q11: Do you just make flat sheet? I want to make a fabrication for my new project.
A: No, we mainly produce stainless steel flat sheet surface treatment, at the same time, we manufacture customized metal finished product as per customer’s drawing and plan, our technician will take care of the rest.
Q12: How many coutries you already exported ?
A: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Iran,
Turkey, Jordan, etc.
Q13: How can I get some samples?
A: Small samples in store and can provide the samples for free. Catalgue is available, most
patterns we have ready samples in stock. Customized samples will take about 5-7days.
Q14: What is the delivery ?
A: Sample order’s delivery time is 5- 7 days. Container orders are about 15-20 days.
Q15: What is the application about your Products?
A: 1.elevator door/cabin or and escalator’s side-wall.
2.Wall cladding inside or outside meeting room/ restaurant.
3.Facade when cladding over something, like columns in the lobby.
4.Ceiling in the supermarket. 5.Decorative draws in some entertainment places.
Q16: How long Can You Guarantee for This Product/Finish?
A: Color guarantee for more than 10 years. Original materials quality certificate can
be provided.
